Senchen (v.) - to drown, sink; also, drown (oneself) by drinking deeply.
Senec witnesseth openly
How that Envie proprely
Is of the Court the comun wenche,
And halt taverne forto schenche
That drink which makth the herte brenne,
And doth the wit aboute renne,
Be every weie to compasse
How that he mihte alle othre passe,
As he which thurgh unkindeschipe
Envieth every felaschipe;
- Gower, John: Confessio amantis (1390-1393)
The Middle-English Word of the Day is selected from Mayhew and Skeat's
"Concise Dictionary of Middle English."
As found on Greg Lindahl's website
The example text was found at the Middle English Collection of the University of Virginia Library.